CN103685119A - Uplink data transmission method, evolved Node Base (eNB) and user equipment (UE) - Google Patents
Uplink data transmission method, evolved Node Base (eNB) and user equipment (UE) Download PDFInfo
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- CN103685119A CN103685119A CN201210337017.7A CN201210337017A CN103685119A CN 103685119 A CN103685119 A CN 103685119A CN 201210337017 A CN201210337017 A CN 201210337017A CN 103685119 A CN103685119 A CN 103685119A
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- uplink synchronous
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2657—Carrier synchronisation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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Abstract
The invention discloses an uplink data transmission method, an evolved Node Base (eNB) and user equipment (UE). The method includes the following steps: the eNB sends an uplink synchronization indication signal to the UE, and the signal indicates that the UE needs to carry out uplink synchronization on a first carrier; the eNB receives an uplink synchronization reference signal sent by the UE on the first carrier, calculates a TA (Time Advance) value needed for uplink data transmission of the UE on the first carrier according to the signal, and sends the TA value to the UE through a second carrier; the eNB sends uplink resource allocation information of the first carrier to the UE through a third carrier, and the information includes a subframe number of the first carrier, as well as the location and size information of a time-frequency resource for uplink transmission in a subframe corresponding to the first carrier, so that the UE can transmit uplink data to the eNB through the first carrier. The invention achieves the uplink synchronization and data transmission of a carrier without control information.
Description
Technical field
The present invention relates to data communication technology field, be specifically related to uplink data transmission method and evolution base station (eNB, evolved Node Base) and subscriber equipment (UE, User Equipment).
Background technology
The uplink synchronous of Long Term Evolution (LTE, Long Term Evolution) system refers to and requires all terminal signalings that arrive same antenna for base station in time domain synchronously, to arrive simultaneously.Because different terminals is different to the distance of base station, so terminal only has by adjusting transmitting time and can accomplish that data arrive base station simultaneously.
In existing LTE system, UE transmission data are specific as follows to the flow process of eNB:
First, if UE on a carrier wave A in uplink loss state, need to carry out uplink synchronous, the flow process that UE carries out uplink synchronous as shown in Figure 1, specifically comprises:
Step 101:UE accesses at random on carrier wave A, on some running time-frequency resource of carrier wave A, sends targeting sequencing (preamble).Wherein, the running time-frequency resource position of transmission preamble is that eNB informs UE by the mode of broadcast or dedicated signaling.
Step 102:eNB, according to the preamble receiving, calculates UE and on carrier wave A, carries out the needed clock of uplink communication (TA, Time Advance) value in advance, and this TA value is sent to UE by carrier wave A.
Step 103:UE receives this TA value, has realized the uplink synchronous on carrier wave A.
When UE is on carrier wave A during in synchronous regime, the resource that can distribute according to eNB be carried out transmitting uplink data, and Fig. 2 has provided the flow process of UE to eNB transmit ascending data, specific as follows:
Step 201:eNB is by the Physical Downlink Control Channel (PDCCH at carrier wave A or other carrier wave, the ascending resource assignment information of Physical Downlink Control Channel) carrying carrier wave A, this information comprises position and the size of the running time-frequency resource for uplink in a subframe.Wherein, specifically which subframe to send upstream data in and clearly stipulate by agreement, such as the 4th sub-frame of uplink after receiving this PDCCH etc.
Step 202:UE obtains the ascending resource assignment information of carrier wave A from carrier wave, according to this information, to eNB, sends upstream data.
In the evolution version Release 12 of LTE, prepare to introduce a kind of new carrier type.And a kind of tendentious scheme is only responsible transfer of data of this new carrier wave at present, all relevant control informations all can send by other carrier wave.Under this scene, existing UE transmission data cannot be worked to the scheme of eNB on new carrier wave, and new carrier wave can not be realized by existing scheme the transmission of uplink synchronous and follow-up upstream data.
Summary of the invention
The invention provides uplink data transmission method and eNB and UE, under the scene of transmitting on different carrier in data and control information, realize UE and transmit data to eNB.
Technical scheme of the present invention is achieved in that
A uplink data transmission method, the method comprises:
Evolution base station eNB sends uplink synchronous indication signaling to user equipment (UE), and this signaling indication UE need to carry out uplink synchronous on first carrier;
ENB receives from first carrier the uplink synchronous reference signal that UE sends, and according to this calculated signals, goes out the needed time advance TA of UE transmit ascending data on first carrier value, and this TA value is sent to UE by the second carrier wave;
ENB sends the ascending resource assignment information of first carrier to UE by the 3rd carrier wave, this information comprises the subframe numbers of first carrier, and in subframe corresponding to first carrier for position and the size information of the running time-frequency resource of uplink so that UE by first carrier to eNB transmit ascending data.
Described uplink synchronous indication signaling carries position and the size information that UE sends the running time-frequency resource in the subframe numbers that uplink synchronous reference signal used and this subframe of using.
Described eNB further comprises when this TA value is sent to UE by the second carrier wave: eNB explicitly or implicitly indicate this TA value corresponding to first carrier.
Described uplink synchronous indication signaling is radio resource control RRC protocol signaling, or is physical layer control signal.
Described uplink synchronous reference signal is targeting sequencing, or is other training sequence.
Described the 3rd carrier wave and the second carrier wave are same carrier wave, or are different carrier.
An eNB, comprising:
Uplink synchronous module: send uplink synchronous indication signaling to UE, this signaling indication UE need to carry out uplink synchronous on first carrier; From first carrier, receive the uplink synchronous reference signal that UE sends, according to this calculated signals, go out the needed TA value of UE transmit ascending data on first carrier, this TA value is sent to UE by the second carrier wave;
Resource distribution module: send the ascending resource assignment information of first carrier by the 3rd carrier wave to UE, this information comprises the subframe numbers of first carrier, and in subframe corresponding to first carrier for position and the size information of the running time-frequency resource of uplink, so that UE is by first carrier transmit ascending data.
Described uplink synchronous module is further used for, when TA value is sent to UE by the second carrier wave, and explicitly or implicitly indicate this TA value corresponding to first carrier.
A user equipment (UE), comprising:
Uplink synchronous module: receive the uplink synchronous indication signaling for first carrier that evolution base station eNB is sent, send uplink synchronous reference signal to eNB on first carrier, receive from the second carrier wave the time advance TA value that eNB sends;
Data transmission module: receive the ascending resource assignment information for first carrier that eNB sends from the 3rd carrier wave, this information comprises in subframe that subframe numbers, the first carrier of first carrier is corresponding position and the size information for the running time-frequency resource of uplink, according to this ascending resource assignment information by first carrier to eNB transmit ascending data.
Compared with prior art, the present invention has realized uplink synchronous and the transfer of data of the carrier wave that there is no control information.
Accompanying drawing explanation
Fig. 1 is the flow chart that existing UE carries out uplink synchronous;
Fig. 2 is that existing UE is to the flow chart of eNB transmit ascending data;
The UE that Fig. 3 provides for the embodiment of the present invention is to the flow chart of eNB transmit ascending data;
The composition schematic diagram of the eNB that Fig. 4 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with drawings and the specific embodiments, the present invention is further described in more detail.
The UE that Fig. 3 provides for the embodiment of the present invention is to the method flow diagram of eNB transmit ascending data, and as shown in Figure 3, its concrete steps are as follows:
Step 301:eNB sends uplink synchronous indication signaling to UE, this signaling is carried the first carrier sign that UE need to carry out uplink synchronous, carries position and size information that UE sends the running time-frequency resource in the subframe numbers that uplink synchronous reference signal used and this subframe of using simultaneously.
ENB can periodically send uplink synchronous indication signaling to UE.
Uplink synchronous indication signaling can be that Radio Resource is controlled (RRC, Radio Resource Control) protocol signaling or physical layer control signal.
First carrier is the carrier wave of responsible transfer of data only, for example: R12 type carrier wave.
Step 302:UE receives this signaling, according to position and the size information of the running time-frequency resource in the first carrier sign in this signaling, subframe numbers and this subframe, on the corresponding running time-frequency resource of the corresponding subframe of first carrier, sends uplink synchronous reference signal.
Uplink synchronous reference signal can be targeting sequencing, can be also other training sequence.Wherein, training sequence is that UE and eNB learn in advance, for example: be that agreement provides.
Step 303:eNB receives this uplink synchronous reference signal from first carrier, according to this calculated signals, goes out the needed TA value of UE transmit ascending data on first carrier, and this TA value is sent to UE by the second carrier wave.
Because this TA value sends across carrier wave, so eNB needs explicitly or implicitly indicates this TA value corresponding to first carrier while sending this TA value on the second carrier wave.
Step 304:UE receives this TA value, has realized the uplink synchronous on first carrier.
The PDCCH of step 305:eNB by the 3rd carrier wave sends the ascending resource assignment information of first carrier to UE, this information comprises the subframe numbers of first carrier, and position and the size information of the running time-frequency resource for uplink in subframe corresponding to first carrier.
Here, the 3rd carrier wave and the second carrier wave can be same carrier waves, can be also different carriers.But the second carrier wave and first carrier are different carriers, the 3rd carrier wave and first carrier are also different carriers.
Step 306:UE receives the ascending resource assignment information of this first carrier, according to this information, on the corresponding time-frequency position of the corresponding subframe of first carrier, to eNB, sends upstream data.
The composition schematic diagram of the eNB that Fig. 4 provides for the embodiment of the present invention, as shown in Figure 4, it mainly comprises: uplink synchronous module 41 and resource distribution module 42, wherein:
Uplink synchronous module 41: send uplink synchronous indication signaling to UE, this signaling indication UE need to carry out uplink synchronous on first carrier; From first carrier, receive the uplink synchronous reference signal that UE sends, according to this calculated signals, go out the needed TA value of UE transmit ascending data on first carrier, this TA value is sent to UE by the second carrier wave, simultaneously to resource distribution module 42, send and synchronously complete indication for this UE.
Wherein, uplink synchronous module 41 when TA value is sent to UE by the second carrier wave, explicitly or implicitly indicate this TA value corresponding to first carrier.
Resource distribution module 42: what receive that uplink synchronous module 41 sends synchronously completes indication, by the 3rd carrier wave, to UE, send the ascending resource assignment information of first carrier, this information comprises the subframe numbers of first carrier, and in subframe corresponding to first carrier for position and the size information of the running time-frequency resource of uplink, so that UE is by first carrier transmit ascending data.
The composition that below provides the UE that the embodiment of the present invention provides, it mainly comprises: uplink synchronous module and data transmission module, wherein:
Uplink synchronous module: receive the uplink synchronous indication signaling for first carrier that eNB sends, send uplink synchronous reference signal to eNB on first carrier, receive from the second carrier wave the TA value that eNB sends.
Data transmission module: receive the ascending resource assignment information for first carrier that eNB sends from the 3rd carrier wave, this information comprises in subframe that subframe numbers, the first carrier of first carrier is corresponding position and the size information for the running time-frequency resource of uplink, according to this ascending resource assignment information by first carrier to eNB transmit ascending data.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (9)
1. a uplink data transmission method, is characterized in that, the method comprises:
Evolution base station eNB sends uplink synchronous indication signaling to user equipment (UE), and this signaling indication UE need to carry out uplink synchronous on first carrier;
ENB receives from first carrier the uplink synchronous reference signal that UE sends, and according to this calculated signals, goes out the needed time advance TA of UE transmit ascending data on first carrier value, and this TA value is sent to UE by the second carrier wave;
ENB sends the ascending resource assignment information of first carrier to UE by the 3rd carrier wave, this information comprises the subframe numbers of first carrier, and in subframe corresponding to first carrier for position and the size information of the running time-frequency resource of uplink so that UE by first carrier to eNB transmit ascending data.
2. method according to claim 1, is characterized in that, described uplink synchronous indication signaling carries position and the size information that UE sends the running time-frequency resource in the subframe numbers that uplink synchronous reference signal used and this subframe of using.
3. method according to claim 1, is characterized in that, described eNB further comprises when this TA value is sent to UE by the second carrier wave: eNB explicitly or implicitly indicate this TA value corresponding to first carrier.
4. method according to claim 1, is characterized in that, described uplink synchronous indication signaling is radio resource control RRC protocol signaling, or is physical layer control signal.
5. method according to claim 1, is characterized in that, described uplink synchronous reference signal is targeting sequencing, or is other training sequence.
6. method according to claim 1, is characterized in that, described the 3rd carrier wave and the second carrier wave are same carrier wave, or are different carrier.
7. an evolution base station eNB, is characterized in that, comprising:
Uplink synchronous module: send uplink synchronous indication signaling to user equipment (UE), this signaling indication UE need to carry out uplink synchronous on first carrier; From first carrier, receive the uplink synchronous reference signal that UE sends, according to this calculated signals, go out the needed time advance TA of UE transmit ascending data on first carrier value, this TA value is sent to UE by the second carrier wave;
Resource distribution module: send the ascending resource assignment information of first carrier by the 3rd carrier wave to UE, this information comprises the subframe numbers of first carrier, and in subframe corresponding to first carrier for position and the size information of the running time-frequency resource of uplink, so that UE is by first carrier transmit ascending data.
8. eNB according to claim 7, is characterized in that, described uplink synchronous module is further used for, when TA value is sent to UE by the second carrier wave, and explicitly or implicitly indicate this TA value corresponding to first carrier.
9. a user equipment (UE), is characterized in that, comprising:
Uplink synchronous module: receive the uplink synchronous indication signaling for first carrier that evolution base station eNB is sent, send uplink synchronous reference signal to eNB on first carrier, receive from the second carrier wave the time advance TA value that eNB sends;
Data transmission module: receive the ascending resource assignment information for first carrier that eNB sends from the 3rd carrier wave, this information comprises in subframe that subframe numbers, the first carrier of first carrier is corresponding position and the size information for the running time-frequency resource of uplink, according to this ascending resource assignment information by first carrier to eNB transmit ascending data.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210337017.7A CN103685119A (en) | 2012-09-12 | 2012-09-12 | Uplink data transmission method, evolved Node Base (eNB) and user equipment (UE) |
| PCT/CN2013/082933 WO2014040511A1 (en) | 2012-09-12 | 2013-09-04 | Method for uplink data transmission, evolved node b, user equipment, computer program, and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210337017.7A CN103685119A (en) | 2012-09-12 | 2012-09-12 | Uplink data transmission method, evolved Node Base (eNB) and user equipment (UE) |
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| CN103685119A true CN103685119A (en) | 2014-03-26 |
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| CN201210337017.7A Pending CN103685119A (en) | 2012-09-12 | 2012-09-12 | Uplink data transmission method, evolved Node Base (eNB) and user equipment (UE) |
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| WO (1) | WO2014040511A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017193339A1 (en) * | 2016-05-12 | 2017-11-16 | 广东欧珀移动通信有限公司 | Signal transmission method, network device, and terminal device |
| CN108347766A (en) * | 2017-01-25 | 2018-07-31 | 中兴通讯股份有限公司 | Paging transmission method, communication site and communication node under a kind of uplink mobility |
| CN110199551A (en) * | 2017-01-18 | 2019-09-03 | 华为技术有限公司 | For the asynchronous system and method for exempting from authorization access |
| WO2019233205A1 (en) * | 2018-06-04 | 2019-12-12 | 电信科学技术研究院有限公司 | Method and apparatus for configuring transmission bandwidth, and device |
| WO2022237659A1 (en) * | 2021-05-08 | 2022-11-17 | 华为技术有限公司 | Communication method and communication apparatus |
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| WO2011026377A1 (en) * | 2009-09-01 | 2011-03-10 | 中兴通讯股份有限公司 | Method and user equipment (ue) for obtaining timing advance command (ta) |
| CN102123516A (en) * | 2011-03-31 | 2011-07-13 | 电信科学技术研究院 | Random access method and equipment based on multiple uplink timing advances |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2017193339A1 (en) * | 2016-05-12 | 2017-11-16 | 广东欧珀移动通信有限公司 | Signal transmission method, network device, and terminal device |
| US10849102B2 (en) | 2016-05-12 | 2020-11-24 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Signal transmission method, network device, and terminal device |
| US11076384B2 (en) | 2016-05-12 | 2021-07-27 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Signal transmission method, network device, and terminal device |
| CN110199551A (en) * | 2017-01-18 | 2019-09-03 | 华为技术有限公司 | For the asynchronous system and method for exempting from authorization access |
| CN110199551B (en) * | 2017-01-18 | 2020-12-25 | 华为技术有限公司 | System and method for asynchronous unlicensed access |
| US11265896B2 (en) | 2017-01-18 | 2022-03-01 | Huawei Technologies Co., Ltd. | Systems and methods for asynchronous grant-free access |
| CN108347766A (en) * | 2017-01-25 | 2018-07-31 | 中兴通讯股份有限公司 | Paging transmission method, communication site and communication node under a kind of uplink mobility |
| CN108347766B (en) * | 2017-01-25 | 2022-05-17 | 中兴通讯股份有限公司 | Paging transmission method under uplink mobility, communication station and communication node |
| WO2019233205A1 (en) * | 2018-06-04 | 2019-12-12 | 电信科学技术研究院有限公司 | Method and apparatus for configuring transmission bandwidth, and device |
| US11575578B2 (en) | 2018-06-04 | 2023-02-07 | Datang Mobile Communications Equipment Co., Ltd. | Method and apparatus for configuring transmission bandwidth, and device |
| WO2022237659A1 (en) * | 2021-05-08 | 2022-11-17 | 华为技术有限公司 | Communication method and communication apparatus |
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| Publication number | Publication date |
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| WO2014040511A1 (en) | 2014-03-20 |
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